21663684

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{12281}}^1$

素因数の和:12305

約数の個数: 54

約数和(自身を含む): 63706734

約数和(自身を除く): 42043050

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 12281, 24562, 36843, 49124, 73686, 85967, 110529, 147372, 171934, 221058, 257901, 343868, 442116, 515802, 601769, 773703, 1031604, 1203538, 1547406, 1805307, 2407076, 3094812, 3610614, 5415921, 7221228, 10831842, 21663684]

約数ペア:

[(1, 21663684), (2, 10831842), (3, 7221228), (4, 5415921), (6, 3610614), (7, 3094812), (9, 2407076), (12, 1805307), (14, 1547406), (18, 1203538), (21, 1031604), (28, 773703), (36, 601769), (42, 515802), (49, 442116), (63, 343868), (84, 257901), (98, 221058), (126, 171934), (147, 147372), (196, 110529), (252, 85967), (294, 73686), (441, 49124), (588, 36843), (882, 24562), (1764, 12281)]